Subtract 81/36 from 21/6
1st number: 3 3/6, 2nd number: 2 9/36
21/6 - 81/36 is 5/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 36 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 6 × 6 = 36,
21/6 = 21 × 6/6 × 6 = 126/36 - Likewise, for the 2nd fraction, since 36 × 1 = 36,
81/36 = 81 × 1/36 × 1 = 81/36 - Subtract the two like fractions:
126/36 - 81/36 = 126 - 81/36 = 45/36 - After reducing the fraction, the answer is 5/4
- In mixed form: 11/4
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